The first two services–Relay Service and Rendezvous Service–are currently available with the SDK released January 25. These will enable mobile apps to communicate directly with each other via a relay point in the cloud.

The other two services, which will be available by the end of February, are Optical Character Recognition in the Cloud and Speech to Text. The former would be able to identify text from a picture of a road sign, while Speech to Text does exactly what its name says: It coverts spoken words into English text.